Signal reporting method, terminal device, and network device

ABSTRACT

Provided by the embodiments of the present application are a signal reporting method, a terminal device, and a network device, which may improve system performance, the method comprising: a terminal device measuring N first signals to obtain a corresponding measurement result and measuring M second signals to obtain a corresponding measurement result, wherein N≥1 and M≥1; the terminal device determining a signal that needs to be reported according to the measurement result of the N first signals and the measurement result of the M second signals.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.16/644,945, filed Mar. 5, 2020, which is a 371 National StageApplication of PCT Application No. PCT/CN2017/100947, filed Sep. 7,2017. The aforementioned applications are incorporated herein byreference in their entirety.

BACKGROUND Technical Field

This application relates to the communications field, and morespecifically, to a signal reporting method, a terminal device, and anetwork device.

Related Art

In a 5G multi-beam (multi-beam) system, a terminal device may measureone type of reference signal, and determine, based on a measurementresult, signals having relatively good quality, namely, signals whosebeams for transmitting the signals have relatively good transmissionquality. Therefore, the terminal device may report information about thesignals, such as beam information or measurement results, to a networkdevice.

However, a plurality of types of reference signals may be configured forthe terminal device on a network. For the terminal device, how todetermine, based on the plurality of types of reference signals,determining a signal that needs to be reported, that is, selecting abeam, is a problem that needs to be resolved urgently.

SUMMARY

Embodiments of this application provide a signal reporting method, aterminal device, and a network device, to determine, based on at leasttwo types of signals, a signal that needs to be reported.

According to a first aspect, a signal reporting method is provided, andthe signal reporting method includes:

measuring, by a terminal device, N first signals to obtain acorresponding measurement result, and measuring M second signals toobtain a corresponding measurement result, where N≥1 and M≥1; and

determining, by the terminal device based on the measurement result ofthe N first signals and the measurement result of the M second signals,signals that need to be reported.

Therefore, according to the signal reporting method in this embodimentof this application, the terminal device can determine, based on themeasurement results of at least two types of signals, the signals thatneed to be reported. That is, the terminal device can select a beambased on the measurement results of the at least two types of signals.

Optionally, in this embodiment of this application, the method furtherincludes:

sending, by the terminal device to a network device, information aboutthe determined signals that need to be reported.

For example, the terminal device may report information about a beamcorresponding to K signals that needs to be reported, or may report ameasurement result corresponding to the K signals, provided that thenetwork device can determine the K signals based on the reportedinformation. This is not especially limited in this embodiment of thisapplication.

With reference to the first aspect, in some implementations of the firstaspect, the method further includes:

receiving, by the terminal device, first configuration information sentby a network device, where the first configuration information is usedto configure the terminal device to measure the first signals and thesecond signals.

For example, the network device may send the first configurationinformation to the terminal device by using semi-static signaling (forexample, Radio Resource Control (Radio Resource Control, RRC) signaling)or dynamic signaling (for example, downlink control information(Downlink Control Information, DCI)). A manner of sending the firstconfiguration information is not limited in this embodiment of thisapplication.

With reference to the first aspect, in some implementations of the firstaspect, the determining, by the terminal device based on the measurementresult of the N first signals and the measurement result of the M secondsignals, signals that need to be reported includes:

determining, by the terminal device, K₁ first signals in the N firstsignals based on the measurement result of the N first signals, anddetermining K₂ second signals in the M second signals based on themeasurement result of the M second signals, where the signals that needto be reported include the K₁ first signals and the K₂ second signals.

For example, the terminal device may determine K₁ first signals havingoptimal transmission quality in the N first signals based on themeasurement result of the N first signals. That is, the K₁ first signalsare K₁ first signals having optimal transmission quality in the N firstsignals.

In other words, the network device may configure the terminal device toseparately compare measurement results of types of signals, to determinea quantity of signals that need to be reported in each type of signal.

With reference to the first aspect, in some implementations of the firstaspect, the method further includes:

receiving, by the terminal device, second configuration information sentby the network device, where the second configuration information isused to configure the terminal device to determine the K₁ first signalsin the N first signals based on the measurement result of the N firstsignals, and determine the K₂ second signals in the M second signalsbased on the measurement result of the M second signals, where K₁≤N andK₂≤M.

With reference to the first aspect, in some implementations of the firstaspect, the determining, by the terminal device based on the measurementresult of the N first signals and the measurement result of the M secondsignals, signals that need to be reported includes:

determining, by the terminal device, K signals in the N first signalsand the M second signals based on the measurement result of the N firstsignals and the measurement result of the M second signals, where1≤K≤N+M, and the signals that need to be reported include the K secondsignals.

In other words, the terminal device may compare the measurement resultsof the two types of signals in a unified manner, and determine the Ksignals in the N first signals and the M second signals. For example,the terminal device may determine K signals having optimal transmissionquality in the N first signals and the M second signals. The K signalsmay be K first signals or K second signals, or may include the K₁ firstsignals and the K₂ second signals, where K₁+K₂=K, K₁>0, and K₂>0.

With reference to the first aspect, in some implementations of the firstaspect, the method further includes:

receiving, by the terminal device, third configuration information sentby the network device, where the third configuration information is usedto configure the terminal device to determine the K signals in the Nfirst signals and the M second signals based on the measurement resultof the N first signals and the measurement result of the M secondsignals, where 1≤K≤N+M.

With reference to the first aspect, in some implementations of the firstaspect, the determining, by the terminal device based on the measurementresult of the N first signals and the measurement result of the M secondsignals, signals that need to be reported includes:

determining, by the terminal device, K₁ first signals in the N firstsignals based on a first determining condition and the measurementresult of the N first signals, and determining K₂ second signals in theM second signals based on a second determining condition and themeasurement result of the M second signals, where K₁≤N, K₂≤M, and thesignals that need to be reported include the K₁ first signals and the K₂second signals.

In other words, the network device may configure different determiningconditions for different signals, so that a signal may be selected basedon a corresponding determining condition during signal selection.Optionally, a determining condition corresponding to each type of signalmay be the same, or may be different. This is not limited in thisembodiment of this application.

With reference to the first aspect, in some implementations of the firstaspect, the method further includes:

receiving, by the terminal device, fourth configuration information sentby the network device, where the fourth configuration information isused to configure the terminal device to determine, in the N firstsignals based on the first determining condition and the measurementresult of the N first signals, a first signal that needs to be reported,and determine, in the M second signals based on the second determiningcondition and the measurement result of the M second signals, a secondsignal that needs to be reported.

With reference to the first aspect, in some implementations of the firstaspect, the first determining condition includes that: a measurementresult is greater than or greater than or equal to a first threshold, ora difference between a measurement result and a maximum value of themeasurement result of the N first signals is less than or less than orequal to a first difference; and

the second determining condition includes that: a measurement result isgreater than or greater than or equal to a second threshold, or adifference between a measurement result and a maximum value of themeasurement result of the M second signals is less than or less than orequal to a second difference.

With reference to the first aspect, in some implementations of the firstaspect, the determining, by the terminal device based on the measurementresult of the N first signals and the measurement result of the M secondsignals, signals that need to be reported includes:

determining, by the terminal device, K second signals in the N firstsignals and the M second signals based on a third determining condition,the measurement result of the N first signals, and the measurementresult of the M second signals, where 1≤K≤N+M, and the signals that needto be reported include the K second signals.

The network device may configure a same determining condition, namely,the third determining condition, for a plurality of signals. Duringsignal selection, the terminal device may select a signal based on thesame determining condition with reference to a measurement result ofeach signal.

With reference to the first aspect, in some implementations of the firstaspect, the method further includes:

receiving, by the terminal device, fifth configuration information sentby the network device, where the fifth configuration information is usedto configure the terminal device to determine, in the N first signalsand the M second signals based on the third determining condition, themeasurement result of the N first signals, and the measurement result ofthe M second signals, the signals that need to be reported.

With reference to the first aspect, in some implementations of the firstaspect, the third determining condition includes that: a measurementresult is greater than or greater than or equal to a third threshold, ora difference between a measurement result and a maximum value of themeasurement result of the N first signals and the measurement result ofthe M second signals is less than or less than or equal to a thirddifference.

With reference to the first aspect, in some implementations of the firstaspect, the method further includes:

performing, by the terminal device, joint processing on a measurementresult of at least one first signal and a measurement result of at leastone second signal to obtain a processed measurement result, where theprocessed measurement result is a measurement result corresponding tothe first signal and the second signal.

With reference to the first aspect, in some implementations of the firstaspect, the performing, by the terminal device, joint processing on ameasurement result of at least one first signal and a measurement resultof at least one second signal to obtain a processed measurement resultincludes:

determining, by the terminal device, a maximum value of the measurementresult of the at least one first signal and the measurement result ofthe at least one second signal as the processed measurement result.

That is, the terminal device may determine a maximum value ofmeasurement results corresponding to a group of signals having aquasi-co-location, as a measurement result corresponding to the group ofsignals having the quasi-co-location.

For example, if the at least one first signal includes a first signal,where a measurement result of the first signal is denoted as RSRP 1, theat least one second signal includes a second signal, where a measurementresult of the second signal is denoted as RSRP 2, and the measurementresult corresponding to the group of signals having thequasi-co-location is denoted as RSRP, RSRP=max (RSRP 1, RSRP 2).

With reference to the first aspect, in some implementations of the firstaspect, the performing, by the terminal device, joint processing on ameasurement result of at least one first signal and a measurement resultof at least one second signal to obtain a processed measurement resultincludes:

determining, by the terminal device, a minimum value of the measurementresult of the at least one first signal and the measurement result ofthe at least one second signal as the processed measurement result.

That is, the terminal device may determine a minimum value of themeasurement result corresponding to a group of signals having aquasi-co-location, as a measurement result corresponding to the group ofsignals having the quasi-co-location.

For example, if the at least one first signal includes a first signal,where a measurement result of the first signal is denoted as RSRP 1, theat least one second signal includes a second signal, where a measurementresult of the second signal is denoted as RSRP 2, and the measurementresult corresponding to the group of signals having thequasi-co-location is denoted as RSRP, RSRP=min (RSRP 1, RSRP 2).

With reference to the first aspect, in some implementations of the firstaspect, the performing, by the terminal device, joint processing on ameasurement result of at least one first signal and a measurement resultof at least one second signal to obtain a processed measurement resultincludes:

determining, by the terminal device, that the processed measurementresult is a*R₁+b*R₂, where a>0, b>0, R₁ is the measurement result of thefirst signal, and R₂ is the measurement result of the second signal.

That is, the terminal device may determine a result obtained byseparately multiplying measurement results corresponding to a group ofsignals having a quasi-co-location by corresponding coefficients, as ameasurement result corresponding to the group of signals having thequasi-co-location.

For example, if the at least one first signal includes a first signal,where a measurement result of the first signal is denoted as RSRP 1, theat least one second signal includes a second signal, where a measurementresult of the second signal is denoted as RSRP 2, and the measurementresult corresponding to the group of signals having thequasi-co-location is denoted as RSRP, RSRP=a*R₁+b*R₂, where a>0 and b>0.

Optionally, a sum of weighting coefficients for measurement resultscorresponding to a group of signals having a quasi-co-location is 1.

With reference to the first aspect, in some implementations of the firstaspect, a and b are configured for the terminal device by the networkdevice, are determined by the terminal device, or are preset on theterminal device.

With reference to the first aspect, in some implementations of the firstaspect, a and b are determined based on at least one of the following:signal bandwidth, signal periods, signal density, resource element REquantities, or sample quantities of the at least one first signal andthe at least one second signal.

With reference to the first aspect, in some implementations of the firstaspect, the first signal and the second signal have a quasi-co-locationQCL or a spatial quasi-co-location.

For example, the at least one first signal and the at least one secondsignal are signals that have a quasi-co-location (Quasi-Co-Location,QCL) or a spatial quasi-co-location (Spatial QCL). For example, the atleast one first signal and the at least one second signal are sent on asame beam, or sent through a same antenna port.

With reference to the first aspect, in some implementations of the firstaspect, the determining, by the terminal device based on the measurementresult of the N first signals and the measurement result of the M secondsignals, signals that need to be reported includes:

determining, by the terminal device based on the processed measurementresult, the signals that need to be reported.

With reference to the first aspect, in some implementations of the firstaspect, the determining, by the terminal device based on the measurementresult of the N first signals and the measurement result of the M secondsignals, signals that need to be reported includes:

adjusting, by the terminal device, the measurement result of the N firstsignals and the measurement result of the M second signals based ontransmit power of the N first signals and transmit power of the M secondsignals; and

determining, based on the adjusted measurement result of the N firstsignals and the adjusted measurement result of the M second signals, thesignals that need to be reported.

In other words, in this embodiment of this application, the terminaldevice may directly determine, based on the measurement result of the Nfirst signals and the measurement result of the M second signals, thesignals that need to be reported; or may adjust the measurement resultsbased on transmit power of the N signals and transmit power of the Msignals, and then determine, based on the adjusted measurement result,the signals that need to be reported.

With reference to the first aspect, in some implementations of the firstaspect, the determining, based on the adjusted measurement result of theN first signals and the adjusted measurement result of the M secondsignals, the signals that need to be reported includes:

comparing, by the terminal device, the adjusted measurement result ofthe N first signals with the adjusted measurement result of the M secondsignals, to determine that K signals having optimal quality are thesignals that need to be reported, where 1≤K≤N+M.

With reference to the first aspect, in some implementations of the firstaspect, the determining, based on the adjusted measurement result of theN first signals and the adjusted measurement result of the M secondsignals, the signals that need to be reported includes:

processing, by the terminal device, some or all of the adjustedmeasurement result of the N first signals and the adjusted measurementresult of the M second signals, and determining, based on the processedmeasurement result of the N first signals and the processed measurementresult of the M second signals, the signals that need to be reported.

With reference to the first aspect, in some implementations of the firstaspect, the processing, by the terminal device, some or all of theadjusted measurement result of the N first signals and the adjustedmeasurement result of the M second signals includes: multiplying, by theterminal device, a first measurement result by a first coefficient, oradding a first offset to the first measurement result, where the firstmeasurement result is any measurement result of the adjusted measurementresult of the N first signals, or any measurement result of the adjustedmeasurement result of the M second signals.

Optionally, the first coefficient is preset on the terminal device, isconfigured for the terminal device by the network device, or isdetermined by the terminal device.

Optionally, the first offset is preset on the terminal device, isconfigured for the terminal device by the network device, or isdetermined by the terminal device.

Optionally, the measurement result is reference signal received powerRSRP.

Optionally, the first signals are channel state information-referencesignals CSI-RSs, and the second signals are some or all signals in asynchronization signal block SS Block.

According to a second aspect, a signal reporting method is provided, andthe signal reporting method includes:

sending, by a network device, first configuration information to aterminal device, where the first configuration information is used toconfigure the terminal device to measure a first signal and a secondsignal; and

receiving, by the network device, a reporting result sent by theterminal device, where the reporting result includes information about asignal determined by the terminal device based on a measurement resultof N first signals and a measurement result of M second signals, whereN≥1 and M≥1.

With reference to the second aspect, in some implementations of thesecond aspect, the method further includes:

sending, by the network device, second configuration information to theterminal device, where the second configuration information is used toconfigure the terminal device to determine K₁ first signals in the Nfirst signals based on the measurement result of the N first signals,and determine K₂ second signals in the M second signals based on themeasurement result of the M second signals, where K₁≤N and K₂≤M.

With reference to the second aspect, in some implementations of thesecond aspect, the method further includes:

sending, by the network device, third configuration information to theterminal device, where the third configuration information is used toconfigure the terminal device to determine K signals in the N firstsignals and the M second signals based on the measurement result of theN first signals and the measurement result of the M second signals,where 1≤K≤N+M.

With reference to the second aspect, in some implementations of thesecond aspect, the method further includes:

sending, by the network device, fourth configuration information to theterminal device, where the fourth configuration information is used toconfigure the terminal device to determine, in the N first signals basedon a first determining condition and the measurement result of the Nfirst signals, a first signal that needs to be reported, and determine,in the M second signals based on a second determining condition and themeasurement result of the M second signals, a second signal that needsto be reported.

With reference to the second aspect, in some implementations of thesecond aspect, the first determining condition includes that: ameasurement result is greater than or greater than or equal to a firstthreshold, or a difference between a measurement result and a maximumvalue of the measurement result of the N first signals is less than orless than or equal to a first difference; and the second determiningcondition includes that: a measurement result is greater than or greaterthan or equal to a second threshold, or a difference between ameasurement result and a maximum value of the measurement result of theM second signals is less than or less than or equal to a seconddifference.

With reference to the second aspect, in some implementations of thesecond aspect, the method further includes:

sending, by the network device, fifth configuration information to theterminal device, where the fifth configuration information is used toconfigure the terminal device to determine, in the N first signals andthe M second signals based on a third determining condition, themeasurement result of the N first signals, and the measurement result ofthe M second signals, signals that need to be reported.

With reference to the second aspect, in some implementations of thesecond aspect, the third determining condition includes that: ameasurement result is greater than or greater than or equal to a thirdthreshold, or a difference between a measurement result and a maximumvalue of the measurement result of the N first signals and themeasurement result of the M second signals is less than or less than orequal to a third difference.

According to a third aspect, a terminal device is provided to performthe method according to any one of the first aspect or the possibleimplementations of the first aspect.

Specifically, the terminal device includes a unit configured to performthe method according to any one of the first aspect the possibleimplementations of the first aspect.

According to a fourth aspect, a network device is provided to performthe method according to any one of the second aspect or the possibleimplementations of the second aspect.

Specifically, the network device includes a unit configured to performthe method in according to any one of the second aspect or the possibleimplementations of the second aspect.

According to a fifth aspect, a terminal device is provided. The terminaldevice includes: a memory, a processor, an input interface, and anoutput interface. The memory, the processor, the input interface, andthe output interface are connected to each other by using a bus system.The memory is configured to store an instruction. The processor isconfigured to execute the instruction stored in the memory, to performthe method according to any one of the first aspect or the possibleimplementations of the first aspect.

According to a sixth aspect, a network device is provided. The networkdevice includes: a memory, a processor, an input interface, and anoutput interface. The memory, the processor, the input interface, andthe output interface are connected to each other by using a bus system.The memory is configured to store an instruction. The processor isconfigured to execute the instruction stored in the memory, to performthe method according to any one of the second aspect or the possibleimplementations of the second aspect.

According to a seventh aspect, a computer storage medium is provided, tostore a computer software instruction used to perform the methodaccording to any one of the first aspect or the possible implementationsof the first aspect, and the computer software instruction includes aprogram designed to perform the foregoing aspects.

According to an eighth aspect, a computer storage medium is provided, tostore a computer software instruction used to perform the methodaccording to any one of the second aspect or the possibleimplementations of the second aspect, and the computer softwareinstruction includes a program designed to perform the foregoingaspects.

According to a ninth aspect, a computer program product including aninstruction is provided. When the computer program product is run on acomputer, the computer is enabled to perform the method according to anyone of the first aspect or the optional implementations of the firstaspect.

According to a tenth aspect, a computer program product including aninstruction is provided. When the computer program product is run on acomputer, the computer is enabled to perform the method according to anyone of the second aspect or the optional implementations of the secondaspect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a communications system according to anembodiment of this application;

FIG. 2 is a schematic flowchart of a signal reporting method accordingto an embodiment of this application;

FIG. 3 is a schematic flowchart of a signal reporting method accordingto another embodiment of this application;

FIG. 4 is a schematic block diagram of a terminal device according to anembodiment of this application;

FIG. 5 is a schematic block diagram of a network device according to anembodiment of this application;

FIG. 6 is a schematic block diagram of a terminal device according toanother embodiment of this application; and

FIG. 7 is a schematic block diagram of a network device according toanother embodiment of this application.

DETAILED DESCRIPTION

Technical solutions in embodiments of this application are describedbelow with reference to the accompanying drawings in the embodiments ofthis application.

It should be understood that, the terms “system” and “network” are ofteninterchangeably used in this specification. The term “and/or” in thisspecification describes only an association relationship for describingassociated objects and represents that three relationships may exist.For example, A and/or B may represent: Only A exists, both A and Bexist, and only B exists. In addition, the character “/” in thisspecification generally indicates an “or” relationship between theassociated objects.

The technical solutions in the embodiments of this application may beapplied to various communications systems, for example, a Global Systemfor Mobile Communications (Global System of Mobile communication, “GSM”for short) system, a Code Division Multiple Access (Code DivisionMultiple Access, “CDMA” for short) system, a Wideband Code DivisionMultiple Access (Wideband Code Division Multiple Access, “WCDMA” forshort) system, a General Packet Radio Service (General Packet RadioService, “GPRS” for short) system, a Long Term Evolution (Long TermEvolution, “LTE” for short) system, an LTE Frequency Division Duplex(Frequency Division Duplex, “FDD” for short) system, an LTE TimeDivision Duplex (Time Division Duplex, “TDD” for short) system, aUniversal Mobile Telecommunication System (Universal MobileTelecommunication System, “UMTS” for short) system, a WorldwideInteroperability for Microwave Access (Worldwide Interoperability forMicrowave Access, “WiMAX” for short) communications system, a future 5Gsystem, and the like.

FIG. 1 shows a wireless communications system 100 applied according toan embodiment of this application. The wireless communications system100 may include a network device 110. The network device 100 may be adevice that communicates with a terminal device. The network device 100may provide communication coverage for a specific geographical area, andmay communicate with a terminal device (such as UE) located within thecoverage area. Optionally, the network device 100 may be a basetransceiver station (Base Transceiver Station, BTS) in a GSM system or aCDMA system, or may be a NodeB (NodeB, NB) in a WCDMA system, or may bean evolved NodeB (evolved NodeB, eNB or eNodeB) in an LTE system, or awireless controller in a cloud radio access network (Cloud Radio AccessNetwork, CRAN). Alternatively, the network device may be a relaystation, an access point, an in-vehicle device, a wearable device, anetwork-side device in a future 5G network, a network device in a futureevolved public land mobile network (Public Land Mobile Network, PLMN),or the like.

The wireless communications system 100 further includes at least oneterminal device 120 located within a coverage range of the networkdevice 110. The terminal device 120 may be mobile or fixed. Optionally,the terminal device 120 may refer to an access terminal, user equipment(User Equipment, UE), a user unit, a user station, a mobile station, amobile console, a remote station, a remote terminal, a mobile device, auser terminal, a terminal, a wireless communications device, a useragent, or a user apparatus. The access terminal may be a cellular phone,a cordless phone, a Session Initiation Protocol (English: SessionInitiation Protocol, SIP) phone, a wireless local loop (Wireless LocalLoop, WLL) station, a personal digital assistant (Personal DigitalAssistant, PDA), a handheld device or a computing device having awireless communications function, another processing device, anin-vehicle device, a wearable device, or the like connected to awireless modem, a terminal device in a future 5G network, or a terminaldevice in a future evolved PLMN.

Optionally, a 5G system or network may also be referred to as a newradio (New Radio, NR) system or network.

Optionally, in the communications system 100, the network device may usedifferent beams to transmit different channel stateinformation-reference signals (Channel-State Information-ReferenceSignal, CSI-RS), or synchronization signal blocks (SynchronizationSignal Block, SS Block), and the terminal device may identify differentbeams based on the different SS Blocks or CSI-RSs, or resources fortransmitting the CSI-RSs.

Correspondingly, the terminal device may measure some downlink signals,such as CSI-RSs or signals in an SS Block; determine, based on ameasurement result, signals having relatively good transmission quality,namely, signals whose beams for transmitting the signals have relativelygood transmission quality; and report information related the determinedbeams to the network device. For example, the terminal device maymeasure N signals, select optimal K signals, and then report informationabout the K signals to the network device, where N is an integer, and1<=K<N.

FIG. 1 shows an example of one network device and two terminal devices.Optionally, the wireless communications system 100 may include aplurality of network devices and within coverage of each network device,there may be another quantity of terminal devices. This is not limitedin this embodiment of this application.

Optionally, the wireless communications system 100 may further includesanother network entity such as a network controller or a mobilitymanagement entity. This is not limited in this embodiment of thisapplication.

FIG. 2 is a schematic flowchart of a signal reporting method 200according to an embodiment of this application. The method 200 may beperformed by the terminal device in the communications system shown inFIG. 1 . As shown in FIG. 2 , the method 200 includes the followingsteps:

S210: The terminal device measures N first signals to obtain acorresponding measurement result, and measures M second signals toobtain a corresponding measurement result, where N≥1 and M≥1.

S220: The terminal device determines, based on the measurement result ofthe N first signals and the measurement result of the M second signals,signals that need to be reported.

Optionally, in this embodiment of this application, the first signalsmay be CSI-RSs, and the second signals may be some or all signals in anSS Block, for example, primary synchronization signals (PrimarySynchronization Signal, PSS) or secondary synchronization signals(Secondary Synchronization Signal, SSS).

Optionally, in this embodiment of this application, the measurementresult of the N first signals and the measurement result of the M secondsignals may be reference signal received power (Reference SignalReceived Power, RSRP). For example, the measurement results may be L1RSRP or layer 3 RSRP, or may be measurement results that can be used fortransmission quality comparison. This is not limited in this embodimentof this application.

It should be understood that, the terminal device may further measure Pthird signals to obtain measurement results corresponding to the P thirdsignals. Further, the terminal device may determine, based on themeasurement result of the N first signals, the measurement result of theM second signals, and the measurement results of the P third signals,the signals that need to be reported. In this embodiment of thisapplication, descriptions are provided by using only an example in whichthe terminal device determines, based on the first signals and thesecond signals, the signals that need to be reported. The terminaldevice may alternatively determine, based on more types of signals, suchas a third signal and a fourth signal, the signals that need to bereported.

Optionally, in this embodiment of this application, after S220, themethod further includes:

sending, by the terminal device to a network device, information aboutthe determined signals that need to be reported.

For example, the terminal device may report information about a beamcorresponding to K signals that needs to be reported, or may report ameasurement result corresponding to the K signals, provided that thenetwork device can determine the K signals based on the reportedinformation. This is not especially limited in this embodiment of thisapplication.

Optionally, in this embodiment of this application, the method 200further includes:

receiving, by the terminal device, first configuration information sentby a network device, where the first configuration information is usedto configure the terminal device to measure the first signals and thesecond signals.

That is, the network device may use the first configuration informationto configure the terminal device to measure signals, and then determine,based on a measurement result, the signals that need to be reported. Forexample, the network device may send the first configuration informationto the terminal device by using semi-static signaling (for example,Radio Resource Control (Radio Resource Control, RRC) signaling) ordynamic signaling (for example, downlink control information (DownlinkControl Information, DCI)). A manner of sending the first configurationinformation is not limited in this embodiment of this application.

Optionally, in an embodiment, S220 may include:

determining, by the terminal device, K₁ first signals in the N firstsignals based on the measurement result of the N first signals, anddetermining K₂ second signals in the M second signals based on themeasurement result of the M second signals, where the signals that needto be reported include the K₁ first signals and the K₂ second signals.

In other words, the terminal device may separately select signals basedon the measurement result of the first signals and the measurementresult of the second signals, that is, determine the K₁ first signals inthe N first signals based on the measurement result of the N firstsignals. For example, the terminal device may determine K₁ first signalshaving optimal transmission quality in the N first signals based on themeasurement result of the N first signals. That is, the K₁ first signalsare K₁ first signals having optimal transmission quality in the N firstsignals. The terminal device may alternatively determine the K₂ secondsignals in the M second signals based on the measurement result in the Msecond signals in a similar manner. For brevity, details are notdescribed herein.

Optionally, in some embodiments, the method 200 may further include:

receiving, by the terminal device, second configuration information sentby the network device, where the second configuration information isused to configure the terminal device to determine the K₁ first signalsin the N first signals based on the measurement result of the N firstsignals, and determine the K₂ second signals in the M second signalsbased on the measurement result of the M second signals, where K₁≤N andK₂≤M.

That is, the network device may configure, for the terminal device, amanner of selecting the signals that need to be reported. For example,the terminal device compares measurement results of types of signals, todetermine respective signals that needs to be reported; or the terminaldevice may compares all measurement results, and determine, based on allthe measurement results, the signals that need to be reported. In thisembodiment, the second configuration information may be used tospecifically configure the terminal device to separately comparemeasurement results of types of signals, to determine a quantity ofsignals that need to be reported for each type of signal.

Optionally, the network device may configure the second configurationinformation for the terminal device by using dynamic signaling, such asDCI; or the network device may send the second configuration informationto the terminal device by using another message or signaling. A mannerof sending the second configuration information is not limited in thisembodiment of this application.

Optionally, in another embodiment, S220 may include:

determining, by the terminal device, K signals in the N first signalsand the M second signals based on the measurement result of the N firstsignals and the measurement result of the M second signals, where1≤K≤N+M, and the signals that need to be reported include the K secondsignals.

In other words, the terminal device may compare the measurement resultsof the two types of signals in a unified manner, and determine the Ksignals in the N first signals and the M second signals. For example,the terminal device may determine K signals having optimal transmissionquality in the N first signals and the M second signals. The K signalsmay be K first signals or K second signals, or may include the K₁ firstsignals and the K₂ second signals, where K₁+K₂=K, K₁>0, and K₂>0.

For example, the terminal device may sort the measurement result of theN first signals and the measurement result of the M second signals in aunified manner, and select, based on ranks of the measurement result ofthe N first signals and the measurement result of the M second signals,the K signals having optimal transmission quality.

Optionally, in some embodiments, the method 200 may further include:

receiving, by the terminal device, third configuration information sentby the network device, where the third configuration information is usedto configure the terminal device to determine the K signals in the Nfirst signals and the M second signals based on the measurement resultof the N first signals and the measurement result of the M secondsignals, where 1≤K≤N+M.

That is, the network device may configure, for the terminal device, amanner of selecting the signals that need to be reported. In thisembodiment, the network device may configure the terminal device tocompare measurement results of a plurality of types of signals in aunified manner, and determine the signals that need to be reported inthe plurality of types of signals. In other words, the network devicemay configure a quantity of each type of signal that needs to bereported by the terminal device, or may configure a total quantity of aplurality of types of signals that need to be reported.

Optionally, the network device may configure the third configurationinformation for the terminal device by using dynamic signaling, such asDCI; or the network device may send the third configuration informationto the terminal device by using another message or signaling. A mannerof sending the third configuration information is not limited in thisembodiment of this application.

Optionally, in some embodiments, S220 may specifically include:

determining, by the terminal device, K₁ first signals in the N firstsignals based on a first determining condition and the measurementresult of the N first signals, and determining K₂ second signals in theM second signals based on a second determining condition and themeasurement result of the M second signals, where K₁≤N, K₂≤M, and thesignals that need to be reported include the K₁ first signals and the K₂second signals.

That is, when determining, in the N first signals, the signals that needto be reported, the terminal device may determine, based on themeasurement result of the N first signals and the first determiningcondition, the signals that need to be reported. For example, the firstdetermining condition includes that: a measurement result is greaterthan or greater than or equal to a first threshold, or a differencebetween a measurement result and a maximum value of the measurementresult of the N first signals is less than or less than or equal to afirst difference. For example, the terminal device may determine, in themeasurement result of the N first signals based on the first determiningcondition, that a signal corresponding to a measurement result greaterthan the first threshold is a signal that needs to be reported; or theterminal device may determine, in the measurement result of the N firstsignals based on the first determining condition, that a signalcorresponding to a measurement result whose difference from a maximummeasurement result is less than a first difference is a signal thatneeds to be reported. Optionally, the second determining conditionincludes that: a measurement result is greater than or greater than orequal to a second threshold, or a difference between a measurementresult and a maximum value of the measurement result of the M secondsignals is less than or less than or equal to a second difference. Amanner in which the terminal device determines, in the M second signalsbased on the second determining condition, the signals that need to bereported is similar thereto. Details are not described herein again.

The first determining condition and the second determining condition maybe the same or different. Specifically, the first threshold and thesecond threshold may be the same or different, and the first differenceand the second difference may be the same or different. This is notlimited in this embodiment of this application.

In other words, the network device may configure different determiningconditions for different signals, so that a signal may be selected basedon a corresponding determining condition during signal selection.

Optionally, in this embodiment of this application, the method 200further includes:

receiving, by the terminal device, fourth configuration information sentby the network device, where the fourth configuration information isused to configure the terminal device to determine, in the N firstsignals based on the first determining condition and the measurementresult of the N first signals, a first signal that needs to be reported,and determine, in the M second signals based on the second determiningcondition and the measurement result of the M second signals, a secondsignal that needs to be reported.

That is, the terminal device may configure a corresponding determiningcondition for each type of signal. Determining conditions correspondingto types of signals may be the same or different. This is not limited inthis embodiment of this application.

In other words, in this embodiment, the network device may configure aselection condition for each type of signal, or the determiningcondition for each type of signal. A signal that satisfies the selectioncondition is a signal that needs to be reported.

Optionally, in a specific embodiment, S220 may include:

determining, by the terminal device, K second signals in the N firstsignals and the M second signals based on a third determining condition,the measurement result of the N first signals, and the measurementresult of the M second signals, where 1≤K≤N+M, and the signals that needto be reported include the K second signals.

In this embodiment, the network device may configure a same determiningcondition, namely, the third determining condition, for a plurality ofsignals. During signal selection, the terminal device may perform signalselection based on the same determining condition with reference to ameasurement result of each signal. For example, the third determiningcondition includes that: a measurement result is greater than or greaterthan or equal to a third threshold, or a difference between ameasurement result and a maximum value of the measurement result of theN first signals and the measurement result of the M second signals isless than or less than or equal to a third difference. In other words,the terminal device may determine a signal corresponding to ameasurement result that satisfies the third determining condition andthat is in the measurement result of the N first signals and themeasurement result of the M second signals, as a signal that needs to bereported.

Optionally, in this embodiment, the method 200 further includes:

receiving, by the terminal device, fifth configuration information sentby the network device, where the fifth configuration information is usedto configure the terminal device to determine, in the N first signalsand the M second signals based on the third determining condition, themeasurement result of the N first signals, and the measurement result ofthe M second signals, the signals that need to be reported.

That is, the terminal device may configure a unified determiningcondition for a plurality of types of signals. During signal selection,the terminal device may select a signal based on the unified determiningcondition with reference to a measurement result of each signal in theplurality of types of signals.

Optionally, in another embodiment, the method 200 further includes:

performing, by the terminal device, joint processing on a measurementresult of at least one first signal and a measurement result of at leastone second signal to obtain a processed measurement result, where theprocessed measurement result is a measurement result corresponding tothe first signal and the second signal.

The at least one first signal and the at least one second signal aresignals that have a quasi-co-location (Quasi-Co-Location, QCL) or aspatial quasi-co-location (Spatial QCL). For example, the at least onefirst signal and the at least one second signal are sent on a same beam,or sent through a same antenna port. In other words, in the N firstsignals and the M second signals, there may be two or more signalshaving a quasi-co-location. For example, at least two first signals andone second signal have a QCL, or at least two first signals and at leasttwo second signals may have a QCL. A quantity of signals having aquasi-co-location is not limited in this embodiment of this application.

Optionally, in some embodiments, S220 may include:

determining, by the terminal device based on the processed measurementresult, the signals that need to be reported.

Specifically, when a first signal and a second signal have aquasi-co-location, a measurement result of the first signal and ameasurement result of the second signal may be processed jointly toobtain the processed measurement results for the two signals, and thenthe terminal device may evaluate transmission quality of the two signalsbased on the processed measurement results. In other words, when thesignals that need to be reported are determined based on the measurementresult of the N first signals and the measurement result of the M secondsignals, the measurement result of the first signals and the measurementresult of the second signals may be replaced with processed measurementresults, then transmission quality is compared with reference to ameasurement result of another signal, and at least one signal havingrelatively good transmission quality is selected therefrom. If in the Nfirst signals and the M second signals, there is still another group ofsignals having a quasi-co-location, measurement results of this group ofsignals may also be processed jointly to obtain a processed measurementresult for this group of signals. During transmission qualitycomparison, the processed measurement result may be used as themeasurement result corresponding to this group of signals.

Optionally, in an embodiment, the performing, by the terminal device,joint processing on a measurement result of at least one first signaland a measurement result of at least one second signal to obtain aprocessed measurement result includes:

determining, by the terminal device, a maximum value of the measurementresult of the at least one first signal and the measurement result ofthe at least one second signal as the processed measurement result.

That is, the terminal device may determine a maximum value ofmeasurement results corresponding to a group of signals having aquasi-co-location, as a measurement result corresponding to the group ofsignals having the quasi-co-location.

For example, if the at least one first signal includes a first signal,where a measurement result of the first signal is denoted as RSRP 1, theat least one second signal includes a second signal, where a measurementresult of the second signal is denoted as RSRP 2, and measurementresults corresponding to a group of signals having a quasi-co-locationis denoted as RSRP, RSRP=max (RSRP 1, RSRP 2).

The measurement result RSRP 1 of the first signal and the measurementresult RSRP 2 of the second signal may be original measurement results,or may be a result obtained by adjusting transmit power of the firstsignal and transmit power of the second signal. This is not limited inthis embodiment of this application.

Optionally, in another embodiment, the performing, by the terminaldevice, joint processing on a measurement result of at least one firstsignal and a measurement result of at least one second signal to obtaina processed measurement result includes:

determining, by the terminal device, a minimum value of the measurementresult of the at least one first signal and the measurement result ofthe at least one second signal as the processed measurement result.

That is, the terminal device may determine a minimum value ofmeasurement results corresponding to a group of signals having aquasi-co-location, as a measurement result corresponding to the group ofsignals having the quasi-co-location.

For example, if the at least one first signal includes a first signal,where a measurement result of the first signal is denoted as RSRP 1, theat least one second signal includes a second signal, where a measurementresult of the second signal is denoted as RSRP 2, and the measurementresult corresponding to a group of signals having a quasi-co-location isdenoted as RSRP, RSRP=min (RSRP 1, RSRP 2).

Optionally, in still another embodiment, the performing, by the terminaldevice, joint processing on a measurement result of at least one firstsignal and a measurement result of at least one second signal to obtaina processed measurement result includes: determining, by the terminaldevice, that the processed measurement result is a*R₁+b*R₂, where a>0,b>0, R₁ is the measurement result of the first signal, and R₂ is themeasurement result of the second signal.

That is, the terminal device may determine a result obtained byseparately multiplying measurement results corresponding to a group ofsignals having a quasi-co-location by corresponding coefficients, as ameasurement result corresponding to the group of signals having thequasi-co-location.

For example, if the at least one first signal includes a first signal,where a measurement result of the first signal is denoted as RSRP 1, theat least one second signal includes a second signal, where a measurementresult of the second signal is denoted as RSRP 2, and the measurementresult corresponding to a group of signals having a quasi-co-location isdenoted as RSRP, RSRP=a*R₁+b*R₂, where a>0 and b>0.

Optionally, a and b are configured for the terminal device by thenetwork device, are determined by the terminal device, or are preset onthe terminal device.

Optionally, a and b are determined based on at least one of thefollowing: signal bandwidth, signal periods, signal density, resourceelement RE quantities, or sample quantities of the at least one firstsignal and the at least one second signal.

For example, the terminal device may determine the coefficient a and thecoefficient b based on signal bandwidth of the at least one first signaland signal bandwidth of the at least one second signal. For example,when the signal bandwidth of the at least one first signal is greaterthan the signal bandwidth of the at least one second signal, theterminal device may determine that a value of a is greater than a valueof b. Alternatively, the terminal device may determine a and b based ona quantity of REs used to send the first signal and a quantity of REsused to send the second signal. For example, if the quantity of REsoccupied by the first signal is greater than the quantity of REsoccupied by the second signal, the terminal device may determine that avalue of a is greater than a value of b. Alternatively, the terminaldevice may determine the coefficient a and the coefficient b based on asample quantity of the at least one first signal and a sample quantityof the at least one second signal. For example, when the sample quantityof the first signal is greater than the sample quantity of the secondsignal, the terminal device may determine that a value of a is greaterthan a value of b.

Optionally, in an implementation, a sum of a and b is 1.

In other words, a sum of weighting coefficients of measurement resultscorresponding to a group of signals having a quasi-co-location is 1.

Optionally, in some embodiments, S220 may include:

adjusting, by the terminal device, the measurement result of the N firstsignals and the measurement result of the M second signals based ontransmit power of the N first signals and transmit power of the M secondsignals; and

determining, based on the adjusted measurement result of the N firstsignals and the adjusted measurement result of the M second signals, thesignals that need to be reported.

In other words, in this embodiment of this application, the terminaldevice may directly determine, based on the measurement result of the Nfirst signals and the measurement result of the M second signals, thesignals that need to be reported; or may adjust the measurement resultsbased on transmit power of the N signals and transmit power of the Msignals, and then determine, based on the adjusted measurement result,the signals that need to be reported.

Optionally, in an embodiment, the determining, based on the adjustedmeasurement result of the N first signals and the adjusted measurementresult of the M second signals, the signals that need to be reportedincludes:

comparing, by the terminal device, the adjusted measurement result ofthe N first signals with the adjusted measurement result of the M secondsignals, to determine that K signals having optimal quality are thesignals that need to be reported, where 1≤K≤N+M.

In other words, the terminal device may directly compare the adjustedmeasurement result, and select the K signals having optimal quality fromthe N first signals and the M second signals, as the signals that needto be reported. Optionally, for a specific implementation process ofdetermining, based on the adjusted measurement result, the signals thatneed to be reported, refer to related descriptions in the foregoingembodiments. For example, the adjusted measurement result may becompared separately, or all measurement results may be compared.Specifically, the K₁ first signals may be determined in the N firstsignals based on the adjusted measurement result of the N first signals,and the K₂ second signals may be determined in the M second signalsbased on the adjusted measurement result of the M second signals.Alternatively, the K signals may be determined in the N first signalsand the M second signals based on the adjusted measurement result of theN first signals and the adjusted measurement result of the M secondsignals. The K signals may be K first signals or K second signals, ormay include at least one first signal, at least one second signal, andthe like.

Optionally, in another embodiment, the determining, based on theadjusted measurement result of the N first signals and the adjustedmeasurement result of the M second signals, the signals that need to bereported includes:

processing, by the terminal device, some or all of the adjustedmeasurement result of the N first signals and the adjusted measurementresult of the M second signals, and determining, based on the processedmeasurement result of the N first signals and the processed measurementresult of the M second signals, the signals that need to be reported.

In other words, the terminal device may further process some or all ofthe adjusted measurement result of the N first signals and the adjustedmeasurement result of the M second signals, and then determine, based onthe processed measurement result of the N first signals and theprocessed measurement result of the M second signals, the signals thatneed to be reported. For a specific implementation process ofdetermining, based on the processed measurement result of the N firstsignals and the processed measurement result of the M second signals,the signals that need to be reported, refer to related descriptions inthe foregoing embodiments. Details are not described herein again.

Optionally, in some embodiments, the processing, by the terminal device,some or all of the adjusted measurement result of the N first signalsand the adjusted measurement result of the M second signals includes:

multiplying, by the terminal device, a first measurement result by afirst coefficient, or adding a first offset to the first measurementresult, where the first measurement result is any measurement result ofthe adjusted measurement result of the N first signals, or anymeasurement result of the adjusted measurement result of the M secondsignals.

For example, the adjusted measurement result of the N first signals andthe adjusted measurement result of the M second signals include thefirst measurement result. Further processing the first measurementresult may be multiplying the first measurement result by the firstcoefficient, and/or adding the first offset to the first measurementresult, and then using the processed first measurement result as a finalmeasurement result of a corresponding first signal. Then, transmissionquality of the first signal may be determined based on the processedfirst measurement result.

Optionally, in this embodiment of this application, the firstcoefficient is preset on the terminal device, is configured for theterminal device by the network device, or is determined by the terminaldevice.

Optionally, in this embodiment of this application, the first offset ispreset on the terminal device, is configured for the terminal device bythe network device, or is determined by the terminal device.

Therefore, according to the signal reporting method in this embodimentof this application, the terminal device may determine, based onmeasurement results of at least two types of signals, the signals thatneed to be reported. Because a signal often corresponds to a beam, thenetwork device may determine a corresponding beam based on informationabout a signal reported by the terminal device, thereby implementingbeam selection.

The foregoing describes a signal reporting method according to anembodiment of this application in detail with reference to FIG. 2 from aperspective of the terminal device. The following describes a signalreporting method according to an embodiment of this application indetail with reference to FIG. 3 from a perspective of the networkdevice. It should be understood that, the description from a side of thenetwork device mutually corresponds to the description from a side ofthe terminal device. For a similar description, refer to the foregoingdescription. To avoid repetition, details are not described hereinagain.

FIG. 3 is a schematic flowchart of a signal reporting method 300according to another embodiment of this application. The method 300 maybe performed by a network device in the communications system shown inFIG. 1 . As shown in FIG. 3 , the method 300 includes the followingcontent:

S310: The network device sends first configuration information to aterminal device, where the first configuration information is used toconfigure the terminal device to measure a first signal and a secondsignal.

S320: The network device receives a reporting result sent by theterminal device, where the reporting result includes information about asignal determined by the terminal device based on a measurement resultof N first signals and a measurement result of M second signals, whereN≥1 and M≥1.

Optionally, in some embodiments, the method 300 further includes:

sending, by the network device, second configuration information to theterminal device, where the second configuration information is used toconfigure the terminal device to determine K₁ first signals in the Nfirst signals based on the measurement result of the N first signals,and determine K₂ second signals in the M second signals based on themeasurement result of the M second signals, where K₁≤N and K₂≤M.

Optionally, in some embodiments, the method further includes:

sending, by the network device, third configuration information to theterminal device, where the third configuration information is used toconfigure the terminal device to determine K signals in the N firstsignals and the M second signals based on the measurement result of theN first signals and the measurement result of the M second signals,where 1≤K≤N+M.

Optionally, in some embodiments, the method further includes:

sending, by the network device, fourth configuration information to theterminal device, where the fourth configuration information is used toconfigure the terminal device to determine, in the N first signals basedon a first determining condition and the measurement result of the Nfirst signals, a first signal that needs to be reported, and determine,in the M second signals based on a second determining condition and themeasurement result of the M second signals, a second signal that needsto be reported.

Optionally, in some embodiments, the first determining conditionincludes that: a measurement result is greater than or greater than orequal to a first threshold, or a difference between a measurement resultand a maximum value of the measurement result of the N first signals isless than or less than or equal to a first difference; and

the second determining condition includes that: a measurement result isgreater than or greater than or equal to a second threshold, or adifference between a measurement result and a maximum value of themeasurement result of the M second signals is less than or less than orequal to a second difference.

Optionally, in some embodiments, the method further includes:

sending, by the network device, fifth configuration information to theterminal device, where the fifth configuration information is used toconfigure the terminal device to determine, in the N first signals andthe M second signals based on a third determining condition, themeasurement result of the N first signals, and the measurement result ofthe M second signals, signals that need to be reported.

Optionally, in some embodiments, the third determining conditionincludes that: a measurement result is greater than or greater than orequal to a third threshold, or a difference between a measurement resultand a maximum value of the measurement result of the N first signals andthe measurement result of the M second signals is less than or less thanor equal to a third difference.

The foregoing describes the method embodiments of this application indetail with reference to FIG. 2 and FIG. 3 . The following describesapparatus embodiments of this application in detail with reference toFIG. 4 to FIG. 7 . It should be understood that, the apparatusembodiments mutually corresponds to the method embodiments. For similardescriptions, refer to the method embodiments.

FIG. 4 is a schematic block diagram of a terminal device 400 accordingto an embodiment of this application. As shown in FIG. 4 , the terminaldevice 400 includes:

a measurement module 410, configured to: measure N first signals toobtain a corresponding measurement result, and measure M second signals,to obtain a corresponding measurement result where N≥1 and M≥1; and

a determining module 420, configured to determine, based on themeasurement result of the N first signals and the measurement result ofthe M second signals, signals that need to be reported.

Optionally, in some embodiments, the terminal device 400 furtherincludes:

a first receiving module, configured to receive first configurationinformation sent by a network device, where the first configurationinformation is used to configure the terminal device to measure thefirst signals and the second signals.

Optionally, in some embodiments, the determining module 420 isspecifically configured to:

determine K₁ first signals in the N first signals based on themeasurement result of the N first signals, and determine K₂ secondsignals in the M second signals based on the measurement result of the Msecond signals, where the signals that need to be reported include theK₁ first signals and the K₂ second signals.

Optionally, in some embodiments, the terminal device 400 furtherincludes:

a second receiving module, configured to receive second configurationinformation sent by the network device, where the second configurationinformation is used to configure the terminal device to determine the K₁first signals in the N first signals based on the measurement result ofthe N first signals, and determine the K₂ second signals in the M secondsignals based on the measurement result of the M second signals, whereK₁≤N and K₂≤M.

Optionally, in some embodiments, the determining module 420 isspecifically configured to:

determine K signals in the N first signals and the M second signalsbased on the measurement result of the N first signals and themeasurement result of the M second signals, where 1≤K≤N+M, and thesignals that need to be reported include the K second signals.

Optionally, in some embodiments, the terminal device 400 furtherincludes:

a third receiving module, configured to receive third configurationinformation sent by the network device, where the third configurationinformation is used to configure the terminal device to determine the Ksignals in the N first signals and the M second signals based on themeasurement result of the N first signals and the measurement result ofthe M second signals, where 1≤K≤N+M.

Optionally, in some embodiments, the determining module 420 isspecifically configured to:

determine K₁ first signals in the N first signals based on a firstdetermining condition and the measurement result of the N first signals,and determine K₂ second signals in the M second signals based on asecond determining condition and the measurement result of the M secondsignals, where K₁≤N, K₂≤M, and the signals that need to be reportedinclude the K₁ first signals and the K₂ second signals.

Optionally, in some embodiments, the terminal device 400 furtherincludes:

a fourth receiving module, configured to receive fourth configurationinformation sent by the network device, where the fourth configurationinformation is used to configure the terminal device to determine, inthe N first signals based on the first determining condition and themeasurement result of the N first signals, a first signal that needs tobe reported, and determine, in the M second signals based on the seconddetermining condition and the measurement result of the M secondsignals, a second signal that needs to be reported.

Optionally, in some embodiments, the first determining conditionincludes that: a measurement result is greater than or greater than orequal to a first threshold, or a difference between a measurement resultand a maximum value of the measurement result of the N first signals isless than or less than or equal to a first difference; and

the second determining condition includes that: a measurement result isgreater than or greater than or equal to a second threshold, or adifference between a measurement result and a maximum value of themeasurement result of the M second signals is less than or less than orequal to a second difference.

Optionally, in some embodiments, the determining module 420 is furtherconfigured to:

determine K second signals in the N first signals and the M secondsignals based on a third determining condition, the measurement resultof the N first signals, and the measurement result of the M secondsignals, where 1≤K≤N+M, and the signals that need to be reported includethe K second signals.

Optionally, in some embodiments, the terminal device 400 furtherincludes:

a fifth receiving module, configured to receive fifth configurationinformation sent by the network device, where the fifth configurationinformation is used to configure the terminal device to determine, inthe N first signals and the M second signals based on the thirddetermining condition, the measurement result of the N first signals,and the measurement result of the M second signals, the signals thatneed to be reported.

Optionally, in some embodiments, the third determining conditionincludes that: a measurement result is greater than or greater than orequal to a third threshold, or a difference between a measurement resultand a maximum value of the measurement result of the N first signals andthe measurement result of the M second signals is less than or less thanor equal to a third difference.

Optionally, in some embodiments, the terminal device 400 furtherincludes:

a processing module, configured to perform joint processing on themeasurement result of the at least one first signal and the measurementresult of the at least one second signal to obtain a processedmeasurement result, where the processed measurement result is ameasurement result corresponding to the first signal and the secondsignal.

Optionally, in some embodiments, the processing module is specificallyconfigured to:

determine a maximum value of the measurement result of the at least onefirst signal and the measurement result of the at least one secondsignal as the processed measurement result.

Optionally, in some embodiments, the processing module is specificallyconfigured to:

determine, by the terminal device, a minimum value of the measurementresult of the at least one first signal and the measurement result ofthe at least one second signal as the processed measurement result.

Optionally, in some embodiments, the processing module is specificallyconfigured to:

determine, by the terminal device, that the processed measurement resultis a*R₁+b*R₂, where a>0, b>0, R₁ is the measurement result of the firstsignal, and R₂ is the measurement result of the second signal.

Optionally, in some embodiments, a and b are configured for the terminaldevice by the network device, are determined by the terminal device, orare preset on the terminal device.

Optionally, in some embodiments, a and b are determined based on atleast one of the following: signal bandwidth, signal periods, signaldensity, resource element RE quantities, or sample quantities of the atleast one first signal and the at least one second signal.

Optionally, in some embodiments, the first signal and the second signalhave a quasi-co-location QCL or a spatial quasi-co-location.

Optionally, in some embodiments, the determining module 420 isspecifically configured to:

determine, based on the processed measurement result, the signals thatneed to be reported.

Optionally, in some embodiments, the terminal device 400 furtherincludes:

a processing module, configured to adjust the measurement result of theN first signals and the measurement result of the M second signals basedon transmit power of the N first signals and transmit power of the Msecond signals; and

the determining module 420 is specifically configured to:

determine, based on the adjusted measurement result of the N firstsignals and the adjusted measurement result of the M second signals, thesignals that need to be reported.

Optionally, in some embodiments, the determining module 420 isspecifically configured to:

compare the adjusted measurement result of the N first signals with theadjusted measurement result of the M second signals, to determine that Ksignals having optimal quality are the signals that need to be reported,where 1≤K≤N+M.

Optionally, in some embodiments, the processing module is furtherconfigured to:

process some or all of the adjusted measurement result of the N firstsignals and the adjusted measurement result of the M second signals; and

the determining module 420 is specifically configured to:

determine, based on the processed measurement result of the N firstsignals and the processed measurement result of the M second signals,the signals that need to be reported.

Optionally, in some embodiments, the processing module is specificallyconfigured to:

multiply a first measurement result by a first coefficient, or add afirst offset to the first measurement result, where the firstmeasurement result is any measurement result of the adjusted measurementresult of the N first signals, or any measurement result of the adjustedmeasurement result of the M second signals.

Optionally, in some embodiments, the first coefficient is preset on theterminal device, is configured for the terminal device by the networkdevice, or is determined by the terminal device.

Optionally, in some embodiments, the first offset is preset on theterminal device, is configured for the terminal device by the networkdevice, or is determined by the terminal device.

Optionally, in some embodiments, the measurement result is referencesignal received power RSRP.

Optionally, in some embodiments, the first signals are channel stateinformation-reference signals CSI-RSs, and the second signals are someor all signals in a synchronization signal block SS Block.

It should be understood that, the terminal device 400 in this embodimentof this application may correspond to the terminal device in the methodembodiments of this application, and the foregoing operations and/orfunctions and another operation and/or function of the units in theterminal device 400 are respectively for implementing correspondingprocedures of the terminal device in the method 200 shown in FIG. 2 .For brevity, details are not described herein again.

FIG. 5 is a schematic block diagram of a network device 500 according toan embodiment of this application. As shown in FIG. 5 , the networkdevice 500 includes:

a sending module 510, configured to send first configuration informationto a terminal device, where the first configuration information is usedto configure the terminal device to measure a first signal and a secondsignal; and

a receiving module 520, configured to receive a reporting result sent bythe terminal device, where the reporting result includes informationabout a signal determined by the terminal device based on a measurementresult of N first signals and a measurement result of M second signals,where N≥1 and M≥1.

Optionally, in some embodiments, the sending module 510 is furtherconfigured to: send second configuration information to the terminaldevice, where the second configuration information is used to configurethe terminal device to determine K₁ first signals in the N first signalsbased on the measurement result of the N first signals, and determine K₂second signals in the M second signals based on the measurement resultof the M second signals, where K₁≤N and K₂≤M.

Optionally, in some embodiments, the sending module 510 is furtherconfigured to:

send third configuration information to the terminal device, where thethird configuration information is used to configure the terminal deviceto determine K signals in the N first signals and the M second signalsbased on the measurement result of the N first signals and themeasurement result of the M second signals, where 1≤K≤N+M.

Optionally, in some embodiments, the sending module 510 is furtherconfigured to:

send fourth configuration information to the terminal device, where thefourth configuration information is used to configure the terminaldevice to determine, in the N first signals based on a first determiningcondition and the measurement result of the N first signals, a firstsignal that needs to be reported, and determine, in the M second signalsbased on a second determining condition and the measurement result ofthe M second signals, a second signal that needs to be reported.

Optionally, in some embodiments, the first determining conditionincludes that: a measurement result is greater than or greater than orequal to a first threshold, or a difference between a measurement resultand a maximum value of the measurement result of the N first signals isless than or less than or equal to a first difference; and

the second determining condition includes that: a measurement result isgreater than or greater than or equal to a second threshold, or adifference between a measurement result and a maximum value of themeasurement result of the M second signals is less than or less than orequal to a second difference.

Optionally, in some embodiments, the sending module 510 is furtherconfigured to:

send fifth configuration information to the terminal device, where thefifth configuration information is used to configure the terminal deviceto determine, in the N first signals and the M second signals based on athird determining condition, the measurement result of the N firstsignals, and the measurement result of the M second signals, signalsthat need to be reported.

Optionally, in some embodiments, the third determining conditionincludes that: a measurement result is greater than or greater than orequal to a third threshold, or a difference between a measurement resultand a maximum value of the measurement result of the N first signals andthe measurement result of the M second signals is less than or less thanor equal to a third difference.

It should be understood that, the network device 500 in this embodimentof this application may correspond to the network device in the methodembodiments of this application, and the foregoing operations and/orfunctions and another operation and/or function of the units in thenetwork device 500 are respectively for implementing correspondingprocedures of the network device in the method 300 shown in FIG. 3 . Forbrevity, details are not described herein again.

As shown in FIG. 6 , an embodiment of this application further providesa terminal device 600. The terminal device 600 may be the terminaldevice 400 in FIG. 4 , and can be configured to perform content of theterminal device corresponding to the method 200 in FIG. 2 . The terminaldevice 600 includes: an input interface 610, an output interface 620, aprocessor 630, and a memory 640. The input interface 610, the outputinterface 620, the processor 630, and the memory 640 may be connected toeach other by using a bus system. The memory 640 is configured to storea program, an instruction, code, or the like. The processor 630 isconfigured to execute the program, the instruction, the code in thememory 640, to control the input interface 610 to receive a signal, andcontrol the output interface 620 to send a signal and perform anoperation in the foregoing method embodiments.

It should be understood that, in this embodiment of this application,the processor 630 may be a central processing unit (Central ProcessingUnit, “CPU” for short), and the processor 630 may further be anothergeneral processor, a digital signal processor (DSP), anapplication-specific integrated circuit (ASIC), a field programmablegate array (FPGA), another programmable logic device, a transistor logicdevice, a discrete gate, a transistor logic device, a discrete hardwarecomponent, or the like. The general-purpose processor may be amicroprocessor, or the processor may be any conventional processor orthe like.

The memory 640 may include a ROM and a RAM, and provides an instructionand data to the processor 630. A part of the memory 640 may furtherinclude a non-volatile random access memory. For example, the memory 640may further store device type information.

In an implementation process, each piece of content in the foregoingmethods can be implemented by using a hardware integrated logicalcircuit in the processor 630, or by using instructions in a form ofsoftware. Content of the methods disclosed with reference to theembodiments of this application may be directly performed and completedby using a hardware processor, or may be performed and completed byusing a combination of hardware and a software module in the processor.The software module may be located in a mature storage medium in theart, such as a RAM, a flash memory, a ROM, a programmable ROM, anelectrically erasable programmable memory, or a register. The storagemedium is located in the memory 640, and the processor 630 readsinformation in the memory 640 and completes the content in the foregoingmethods in combination with hardware of the processor. To avoidrepetition, details are not described herein again.

In a specific implementation, the first receiving module, the secondreceiving module, the third receiving module, the fourth receivingmodule, and the fifth receiving module in the terminal device 400 shownin FIG. 4 may be implemented by using the input interface 610 and theoutput interface 620 in FIG. 6 . The measurement module 410, thedetermining module 420, and the processing module in the terminal device400 shown in FIG. 4 may be implemented by using the processor 630 inFIG. 6 .

As shown in FIG. 7 , an embodiment of this application further providesa network device 700. The network device 700 may be the network device500 in FIG. 5 , and can be configured to perform content of the networkdevice corresponding to the method 300 in FIG. 3 . The network device700 includes: an input interface 710, an output interface 720, aprocessor 730, and a memory 740. The input interface 710, the outputinterface 720, the processor 730, and the memory 740 may be connected toeach other by using a bus system. The memory 740 is configured to storea program, an instruction, code, or the like. The processor 730 isconfigured to execute the program, the instruction, the code in thememory 740, to control the input interface 710 to receive a signal, andcontrol the output interface 720 to send a signal and perform anoperation in the foregoing method embodiments.

It should be understood that, in this embodiment of this application,the processor 730 may be a central processing unit (Central ProcessingUnit, “CPU” for short), and the processor 730 may further be anothergeneral processor, a digital signal processor (DSP), anapplication-specific integrated circuit (ASIC), a field programmablegate array (FPGA), another programmable logic device, a transistor logicdevice, a discrete gate, a transistor logic device, a discrete hardwarecomponent, or the like. The general-purpose processor may be amicroprocessor, or the processor may be any conventional processor orthe like.

The memory 740 may include a ROM and a RAM, and provides an instructionand data to the processor 730. A part of the memory 740 may furtherinclude a non-volatile random access memory. For example, the memory 740may further store device type information.

In an implementation process, each piece of content in the foregoingmethods can be implemented by using a hardware integrated logicalcircuit in the processor 730, or by using instructions in a form ofsoftware. Content of the methods disclosed with reference to theembodiments of this application may be directly performed and completedby using a hardware processor, or may be performed and completed byusing a combination of hardware and a software module in the processor.The software module may be located in a mature storage medium in theart, such as a RAM, a flash memory, a ROM, a programmable ROM, anelectrically erasable programmable memory, or a register. The storagemedium is located in the memory 740, and the processor 730 readsinformation in the memory 740 and completes the content in the foregoingmethods in combination with hardware of the processor. To avoidrepetition, details are not described herein again.

In a specific implementation, the sending module 510 in the networkdevice 500 shown in FIG. 5 may be implemented by using the outputinterface 720 in FIG. 7 , and the receiving module 520 in the networkdevice 500 may be implemented by using the input interface 710 in FIG. 7.

Persons of ordinary skill in the art may be aware that, the units andalgorithm steps in the examples described with reference to theembodiments disclosed in this specification may be implemented byelectronic hardware or a combination of computer software and electronichardware. Whether the functions are performed by hardware or softwaredepends on particular applications and design constraint conditions ofthe technical solutions. Persons skilled in the art may use differentmethods to implement the described functions for each particularapplication, but it should not be considered that the implementationgoes beyond the scope of this application.

It may be clearly understood by persons skilled in the art that forconvenience and brevity of description, for a detailed working processof the foregoing system, apparatus, and unit, refer to a correspondingprocess in the foregoing method embodiments, and details are notdescribed herein again.

In the several embodiments provided in this application, it should beunderstood that the disclosed system, apparatus, and method may beimplemented in other manners. For example, the described apparatusembodiment is merely an example. For example, the unit division ismerely logical function division and may be other division during actualimplementation. For example, a plurality of units or components may becombined or integrated into another system, or some features may beignored or not performed. In addition, the displayed or discussed mutualcouplings or direct couplings or communication connections may beimplemented by using some interfaces. The indirect couplings orcommunication connections between the apparatuses or units may beimplemented in electronic, mechanical, or other forms.

The units described as separate parts may or may not be physicallyseparate, and the parts displayed as units may or may not be physicalunits, may be located at one position, or may be distributed on aplurality of network units. Some of or all of the units may be selectedaccording to actual needs to achieve the objectives of the solutions ofthe embodiments.

In addition, functional units in the embodiments of this application maybe integrated into one processing unit, or each of the units may existalone physically, or two or more units may be integrated into one unit.

When the functions are implemented in the form of software functionalunits and sold or used as independent products, the functions may bestored in a computer-readable storage medium. Based on such anunderstanding, the technical solutions of this application essentially,or the part contributing to the existing technology, or some of thetechnical solutions may be implemented in the form of a softwareproduct. The software product is stored in a storage medium and includesseveral instructions for instructing a computer device (which may be apersonal computer, a server, or a network device) to perform all or someof the steps of the methods described in the embodiments of thisapplication. The foregoing storage medium includes: any medium that canstore program code, such as a USB flash memory drive, a removable harddisk, a read-only memory (ROM, Read-Only Memory), a random access memory(RAM, Random Access Memory), a magnetic disk, or an optical disc.

The descriptions are only specific implementations of this application,but are not intended to limit the protection scope of this application.Any variation or replacement readily figured out by persons skilled inthe art within the technical scope disclosed in this application shallfall within the protection scope of this application. Therefore, theprotection scope of this application shall be subject to the protectionscope of the claims.

What is claimed is:
 1. A signal reporting method, comprising: sending,by a network device, first configuration information to a terminaldevice, wherein the first configuration information is used to configurethe terminal device to measure a first signal and a second signal; andreceiving, by the network device, a reporting result sent by theterminal device, wherein the reporting result comprises informationabout: a signal determined based on a processed measurement result, andK signals in N first signals and M second signals; wherein N≥1, M≥1,1≤K≤N+M, the processed measurement result is obtained by performingjoint processing on a measurement result of at least one first signaland a measurement result of at least one second signal by the terminaldevice, and the K signals in the N first signals and the M secondsignals is determined by the terminal device based on a measurementresult of the N first signals and a measurement result of the M secondsignals; wherein the first signals are channel stateinformation-reference signals (CSI-RSs), and the second signals are someof signals in a synchronization signal (SS) block.
 2. The methodaccording to claim 1, wherein the first signal and the second signalhave a quasi-co-location (QCL) or a spatial quasi-co-location.
 3. Themethod according to claim 1, wherein the measurement result is referencesignal received power (RSRP).
 4. A network device, comprising: aprocessor, configured to: send first configuration information to aterminal device, wherein the first configuration information is used toconfigure the terminal device to measure a first signal and a secondsignal; and receive a reporting result sent by the terminal device,wherein the reporting result comprises information about: a signaldetermined based on a processed measurement result, and K signals in Nfirst signals and M second signals; wherein N≥1, M≥1, 1≤K≤N+M, theprocessed measurement result is obtained by performing joint processingon a measurement result of at least one first signal and a measurementresult of at least one second signal by the terminal device, and the Ksignals in the N first signals and the M second signals is determined bythe terminal device based on a measurement result of the N first signalsand a measurement result of the M second signals; wherein the firstsignals are channel state information-reference signals (CSI-RSs), andthe second signals are some of signals in a synchronization signal (SS)block.
 5. The network device according to claim 4, wherein the firstsignal and the second signal have a quasi-co-location (QCL) or a spatialquasi-co-location.
 6. The network device according to claim 4, whereinthe measurement result is reference signal received power (RSRP).
 7. Themethod according to claim 1, further comprising: sending, by the networkdevice, fourth configuration information to the terminal device, whereinthe fourth configuration information is used to configure the terminaldevice to determine, in the N first signals based on a first determiningcondition and the measurement result of the N first signals, a firstsignal that needs to be reported, and determine, in the M second signalsbased on a second determining condition and the measurement result ofthe M second signals, a second signal that needs to be reported.
 8. Themethod according to claim 7, wherein the first determining conditioncomprises that: a measurement result is greater than or greater than orequal to a first threshold, or a difference between a measurement resultand a maximum value of the measurement result of the N first signals isless than or less than or equal to a first difference; and the seconddetermining condition comprises that: a measurement result is greaterthan or greater than or equal to a second threshold, or a differencebetween a measurement result and a maximum value of the measurementresult of the M second signals is less than or less than or equal to asecond difference.
 9. The method according to claim 7, furthercomprising: sending, by the network device, fifth configurationinformation to the terminal device, wherein the fifth configurationinformation is used to configure the terminal device to determine, inthe N first signals and the M second signals based on a thirddetermining condition, the measurement result of the N first signals,and the measurement result of the M second signals, signals that need tobe reported.
 10. The method according to claim 9, wherein the thirddetermining condition comprises that: a measurement result is greaterthan or greater than or equal to a third threshold, or a differencebetween a measurement result and a maximum value of the measurementresult of the N first signals and the measurement result of the M secondsignals is less than or less than or equal to a third difference. 11.The network device according to claim 4, wherein the processor isfurther configured to: send fourth configuration information to theterminal device, wherein the fourth configuration information is used toconfigure the terminal device to determine, in the N first signals basedon a first determining condition and the measurement result of the Nfirst signals, a first signal that needs to be reported, and determine,in the M second signals based on a second determining condition and themeasurement result of the M second signals, a second signal that needsto be reported.
 12. The network device according to claim 11, whereinthe first determining condition comprises that: a measurement result isgreater than or greater than or equal to a first threshold, or adifference between a measurement result and a maximum value of themeasurement result of the N first signals is less than or less than orequal to a first difference; and the second determining conditioncomprises that: a measurement result is greater than or greater than orequal to a second threshold, or a difference between a measurementresult and a maximum value of the measurement result of the M secondsignals is less than or less than or equal to a second difference. 13.The network device according to claim 4, wherein the processor isfurther configured to: send fifth configuration information to theterminal device, wherein the fifth configuration information is used toconfigure the terminal device to determine, in the N first signals andthe M second signals based on a third determining condition, themeasurement result of the N first signals, and the measurement result ofthe M second signals, signals that need to be reported.
 14. The networkdevice according to claim 13, wherein the third determining conditioncomprises that: a measurement result is greater than or greater than orequal to a third threshold, or a difference between a measurement resultand a maximum value of the measurement result of the N first signals andthe measurement result of the M second signals is less than or less thanor equal to a third difference.